Scarring Alopecia: Why Early Referral Matters

Scarring alopecia is a group of conditions in which inflammation destroys hair follicles and replaces them with scar tissue, so hair in those areas cannot grow back. The loss can often be stopped or slowed with treatment, but not reversed. That is why recognising the warning signs and seeing a dermatologist early matters more here than in almost any other type of hair loss.

Scarring versus non-scarring hair loss

Most hair loss is non-scarring. In pattern hair loss, telogen effluvium and alopecia areata, the follicle stays alive even when it is not producing a visible hair, which leaves room for regrowth. In scarring, or cicatricial, alopecia the follicle's stem cells are damaged. Once that happens, the follicle is gone for good.

Scarring alopecias are much less common than pattern hair loss, and they can be mistaken for it, especially early on. A thinning patch or a receding hairline may look ordinary until someone examines the scalp closely.

Conditions in this group

Lichen planopilaris (LPP)

LPP is an inflammatory condition that targets follicles, usually on the top or crown of the scalp. It often causes itching, burning or tenderness, with redness and scale clustered around the base of hairs. Patches of smooth scalp can slowly spread or join together. It is more common in adult women but can affect anyone.

Frontal fibrosing alopecia (FFA)

FFA is considered a variant of LPP. It causes a band-like recession of the front hairline and often the hairline in front of the ears. Eyebrow thinning or loss is common and sometimes appears first. It is seen most often in women after menopause, though younger women and men can be affected. The skin of the receded area often looks paler and smoother than the forehead below it.

Other scarring alopecias

• Central centrifugal cicatricial alopecia (CCCA), starting at the crown, most common in women of African descent
• Discoid lupus, which can cause red, scaly patches that leave scarring and changes in skin colour
• Folliculitis decalvans and dissecting cellulitis, which involve pus bumps, crusting or painful lumps
• Late-stage traction alopecia, where years of tension have scarred the follicles

Our article on hair loss in Black and textured hair discusses CCCA in more depth.

Warning signs that need a doctor

Please see your family doctor soon, and ask about dermatology referral, if you notice any of the following:

• Itching, burning, stinging or tenderness on the scalp, especially in an area that is thinning
• Redness, scale or small bumps clustered around hairs
• Patches of shiny, smooth skin where you cannot see hair openings
• A hairline that is moving back as a band, particularly with eyebrow loss
• Pus bumps, crusts or painful lumps on the scalp
• Hair loss that is steadily spreading over months

Some people with scarring alopecia have no symptoms at all, so slow, unexplained loss in an unusual pattern is also worth checking.

How it is diagnosed

A dermatologist will take a history, look at the scalp, eyebrows, nails and skin elsewhere, and usually examine the scalp with a dermatoscope. Under magnification, loss of the tiny openings where hairs emerge is a key sign of scarring. A small scalp biopsy, taken under local anaesthetic, is often needed to confirm the type of scarring alopecia, because treatment differs between them. Blood tests may be ordered to look for related conditions such as lupus or thyroid disease.

Wait times for dermatology can be long. Seeing your family doctor early, with clear photos of the area over time, helps get the referral moving and helps the specialist judge how active the condition is.

Why early treatment matters

Because scarred follicles cannot recover, the aim of treatment is to calm the inflammation and protect the hair that remains. The sooner that happens, the more hair is preserved. Some scarring alopecias go through active and quiet phases, and some burn out on their own after years, but it is not possible to predict this in advance.

Treatment is prescribed and monitored by your physician or dermatologist. Depending on the diagnosis, it may include strong topical steroids, steroid injections into the scalp, oral anti-inflammatory or immune-modifying medications, or certain antibiotics used for their anti-inflammatory effect. Each has its own side effects and monitoring needs, so please do not start, stop or change these on your own.

Living with a scarring alopecia

Being told hair will not grow back can be hard to hear, and many people feel anxious or self-conscious while waiting to see whether treatment is working. Talking with your family doctor about how you are coping is worthwhile, and mental-health support is part of good care. Regular follow-up with photos helps show whether the condition is settling, which can be reassuring even when the change is slow.

What cosmetic treatments can and cannot do

This is a medical condition first. Cosmetic treatments cannot regrow hair in scarred areas, and some can irritate an active scalp. Platelet-rich plasma (PRP), for example, should generally not be offered while a scarring alopecia is active, and evidence for it in these conditions is very limited. Microneedling and other scalp procedures carry a similar caution.

Once the condition has been inactive for a period that your dermatologist is comfortable with, options such as hair transplant surgery, scalp micropigmentation, wigs or hairpieces may be discussed. Transplanted hair does not always take well in scarred skin, so this is a specialist decision. Our article on scalp micropigmentation explains one camouflage option.

Frequently asked questions

Is scarring alopecia contagious?

No. These are inflammatory conditions, not infections you can catch or pass on.

Can I still colour or style my hair?

Many people can, but harsh chemicals, heat and tension may irritate an inflamed scalp. Ask your dermatologist what is reasonable during treatment.

Does scarring alopecia always spread?

Not always. Some cases stabilise with treatment or on their own, but because spread cannot be predicted, early treatment is generally recommended.

If you have scalp symptoms or an unusual pattern of hair loss, HealthPark Medical Aesthetics can examine your scalp and help direct you to your family doctor and dermatology promptly, before any cosmetic treatment is considered.